import java.util.Scanner;

// 与文件同名类中Main方法调用非同名类中的Main方法
public class Main {
    public static void main(String[] args) {
        Car.main(null);
    }
}


class Car{
    private String carNumber;

    private void setNumber(String num){
        this.carNumber = num;
    }

    public String toString(){
        return "My car No. is: "+this.carNumber;
    }



    public void input(){
        Scanner scaner = new Scanner(System.in);
        String num = scaner.nextLine();
        while(num.length()!=5){
            num = scaner.nextLine();
        }
    }
    public static void main(String s){
        Car car = new Car();
        car.input();
        System.out.println(car.toString());

    }
}


